Emilia Fox's terrifying disguise

Actress Emilia Fox has revealed being made up with prosthetics to resemble an old hag in 'Merlin' was a ''terrifying'' experience, as it gave her an unwelcome glimpse into the future

Emilia Fox found her old woman disguise in 'Merlin' "terrifying".

The 36-year-old actress - who is best known for her role as Dr. Nikki Alexander in BBC crime drama 'Silent Witness' - admitted being made up with prosthetics was not a pleasant experience as it gave her a "glimpse of the future".

She said: "It is the best disguise that I have ever had in TV or film. It was truly terrifying because it's a glimpse of the future.

"It was really quite odd as people treated me differently as an anonymous old hag. It was not a welcome revelation."

Emilia explained while seeing the results of the prosthetics was "phenomenal", it could take up to four hours to complete.

She added: "I have to say it was phenomenal having the prosthetics done and going through that whole process - I had never had that done before and of course on 'Silent Witness' it happens to a lot of the other characters but never mine.

"The whole process of having that put on, seeing that gradual change was really extraordinary and fun. Although it did take about three or four hours to complete.